Blade hub



FIG. 1 is a top view of an embodiment of a blade hub, the bottom viewbeing an identical image thereof;

FIG. 2 is a left side elevation view of the blade hub of FIG. 1, theright side elevation view being an identical image thereof; and,

FIG. 3 is a front elevation view of the blade hub of FIG. 1.

The features of the blade hub shown in broken lines depict environmentalsubject matter only and form no part of the claimed design.

The ornamental design for a blade hub, as shown and described. 